mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +09:00
dca9220c35
Add code to start up U-Boot in 64-bit mode. It is fairly simple since we are running from RAM and SPL has done the low-level init. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
29 lines
469 B
ArmAsm
29 lines
469 B
ArmAsm
/*
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* 64-bit x86 Startup Code
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*
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* (C) Copyright 216 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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.section .text
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.code64
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.globl _start
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.type _start, @function
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_start:
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/* Set up memory using the existing stack */
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mov %rsp, %rdi
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call board_init_f_alloc_reserve
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mov %rax, %rsp
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call board_init_f_init_reserve
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call board_init_f
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call board_init_f_r
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/* Should not return here */
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jmp .
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